PCB with Immersion Gold (ENIG)

Company Advantages
1. The raw materials of A-TECH immersion gold pcb are carefully selected from our reliable suppliers. These quality materials meet with customer's requirements and strict regulatory requirements.
2. This product stands up to humidity. Its materials are hydrophobic, meaning it does not absorb water and does it not hold moisture.
3. It has adequate crease-resistance. The reason is partly chemical, which is determined by the fiber used, and partly mechanical, which is determined by the yarn and fabric construction.
4. The product is in compliance with the market trend.

Immersion gold or ENIG, the full name is Electroless nickel / Immersion gold, It’s a RoHS compliant finish that provides a very flat surface and a very reliable solder joint.

ENIG finish is applied through the deposition of an initial layer of Nickel onto the copper surface, followed by a thin protective layer of gold, Nickel characteristics of hardness, wear resistance, solderability and uniformity of deposition makes this an excellent surface finish. The thin layer of gold preserves the solderability of the finish by preventing oxidization of the highly active nickel surface.

Basically the gold thickness of ENIG is 1-5U” and the nickel thickness is 120-240U”, the shelf life of immersion gold PCB can reach to 12 months.

The advantages of immersion gold finish

● Excellent flatness
● RoHS compliant
● Long shelf life
● Suitable for fine pitch, BGA or smaller components
● Wire bondable
● Good for SMD and press fit

The disadvantages of immersion gold finish

●Expensive finish
●Black pad concerns on BGA

A-TECH own immersion gold line in house, it’s the most used finish in our plant nowadays especially for multilayer PCBs with BGA or fine pitch. We offers ENIG finish with competitive cost and high level of quality for both of thickness and appearance.

Company Features
1. A-TECH CIRCUITS Co., Ltd. is an international company focused on serving immersion gold pcb markets.
2. We have a perfect quality control system, and we have obtained the ISO 9001 international quality system certification. All of our production processes will comply with the regulations stipulated in this system.
3. We are committed to maintaining the highest standards of quality and value in products and dependability in service. We always strive to better understand the wants, needs, and expectations of our customers and to constantly exceed those expectations. Our aim is to provide the most competitive product solution and service to customers and continue to create the maximum value for them. Get price! We give priority to sustainability in the process od our business. We aim to improve our product quality in a sustainable manner and reduce waste as possible.